Well, this thread has fallen far off the path of the initial inquiry, so I will succinctly answer and close it. Tangents can be taken up in other threads, as the need for discussion arises. 
Will we have a DT 4… Yes.
… in the near future? We don’t comment on development timeframes and near future is subjective.
It will appear when it’s ready but rest assured we are always hard at work.